NUM 4:16

16 “Aaron’s son Eleazar will have the work of taking care of the [olive] oil for the lamps, the nice-smelling incense, the grain which will be burned on the altar each day, and the [olive] oil for anointing [the priests]. Eleazar is the one who will supervise the work that is done at the Sacred Tent and the men who take care of everything that is in it.”